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Fistbump (a Pinecest story)	By : Edward_or_Ford Category: +G through L > Gravity Falls Views: 13063 -:- Recommendations : 1 -:- Currently Reading : 0
Disclaimer: I do not own Gravity Falls or its characters. I will not earn any money from this story.

Chapter List
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Mabel and Dipper’s plan was to spend the whole of their birthday doing stuff they wanted to do. They needed the entire Saturday to do this, so they wanted to stay in a hotel on Friday and Saturday nights. They wanted Stan to drive them to and from Portland, arriving on sometime on Friday and leaving Sunday morning. What Stan was supposed to be doing with his time all day Saturday was not really fleshed out by the kids.
Stan’s modifications to the twins’ plan was subtle, but significant. He had no problem purchasing theatre tickets on his credit card for the kids, or booking the hotel (provided, of course, the twins paid him back). But you can’t check into a hotel without presenting your credit card, and Stan would have to do this in person.
The Mystery Shack couldn’t run without him: Mabel’s brief attempt to be the boss last summer had proven that. Stan couldn’t give up all that weekend’s business by being away, but he could justify closing up just on Friday afternoon. He would drive with the kids to Portland, check in, hand the door passkeys over to the kids, then drive back home. Dipper and Mabel didn’t need to present a credit card to check out, as his was on file. Then on Sunday, Stan would send Soos to the city to pick them back up again. This part scared Stan a bit, but the man-child had matured quite a bit the last year: he would be fine to drive to Portland and back.
For a brief moment, Stan wondered how safe the twins would be in the city on their own. Then he dismissed it: they had stared down all kinds of supernatural incidents when they were only twelve. He had no doubt they could handle a day in the city as they turned fourteen. They were are great couple of kids, and they had earned a big vacation day for themselves.

The last weekend of August arrived quickly. To show their gratitude to their uncle, Dipper and Mabel had worked in the Shack extra diligently and without complaint for the two weeks since the birthday trip had been approved. They used their off-hours to firm up the details of what they were going to do on their birthday at Portland.
Dipper decided that for his choice of destination, he and Mabel would go to the Oregon Museum of Science and Industry. He had never been too ashamed of showing his nerdy side, and thought that not only would he really enjoy the facility, but Mabel might actually show some enthusiasm for it too. He knew his sister was never going to be as bookish as he was, but she was very smart and never gave herself enough credit. Enjoying a learning experience would be a great present for her on their birthday. They’d arrive at the start of the day and leave at around lunchtime.
Mabel couldn’t help herself. She wanted to go shopping, and planned for her and Dipper to go to Pioneer Place, a downtown mall, where they would get lunch and an afternoon of browsing the stores. It had been a long time since she had seen the inside of a big mall. It wasn’t just mindless ogling of stuff: school would be starting just a week after their big day in the city, and they would be getting back to California with only a couple of days to spare (including Labor Day, when most everything would be closed). They would need clothes and school supplies, and she was going to make sure they would be prepared (and maybe get some shiny things, too). She hoped Dipper wouldn’t be bored by the time they were to leave late in the afternoon for their hotel.
They would be bringing “dressy” clothes with them: Dipper had a nice shirt and pants, but would have to buy a jacket and tie at the mall in Portland, while Mabel had a medium-length dress and matching jacket she had brought with her from home down south (she had brought them “just in case I needed them”). They would change at their hotel room, then head a few streets down where they had reservations for dinner at Morton’s, an upscale place that specialized in steak and seafood. Both kids hoped they didn’t make any mess on their clothes, because after that they would go straight across the street to the Keller Auditorium, and see the production of “Les Miserables”, their first big-time live theatre performance. Mabel was giddy with anticipation of the event, and was very happy that Dipper also seemed to be enthusiastic at the prospect of the dinner and show.
The drive from Gravity Falls to Portland seemed to take forever (for the twins because of anticipation, for Stan because of their incessant babble), but eventually they arrived at the Hilton Portland Hotel. By the hotel’s policy, the room naturally had to include an adult, so Stan had booked a room for three. The room included two queen-sized beds, but of course he wouldn’t actually be staying so that was perfect for the kids. As Dipper inspected the television and cable box in the high class room, Mabel luxuriated on top of the bed she had chosen, gleefully anticipating having two nights sleep with such a huge amount of bed space.
“You’ve got your debit cards, right?” Stan asked them both. Both nodded, rolling their eyes because this was the third time he had asked the question. “And your cell phone?” Stan added, looking at Dipper.
“Right here, Grunkle Stan,” Dipper deadpanned, patting a pocket in his vest.
“Good. Don’t use it unless you need it, but make sure you’ve got it. I kind of need you to come back, your parents might not like it if I don’t send you home next week,” he added, trying unsuccessfully to add his gruff humor to cover up any small amount of worry.
Stan gave them both (uncomfortable) hugs, wished them a happy birthday, and closed the door while grumbling out loud at the long drive back he faced.

After they had found homes for their bathroom items and taken some clothes from their bags, Mabel grinned at Dipper. “Wow, we made it! I’m so excited!” she squealed.
“I know, right?” Dipper replied, enjoying Mabel’s enthusiasm. “What do we want to do now?”
“I don’t know! We planned out tomorrow completely, I never thought about tonight!” she said. She thought for a brief moment. Dipper was always asking her for her input, she always loved that about her brother. “Well, whatever we do, we’d better not stay out late, because we have a lot going on tomorrow.”
“Okay, no problemo,” agreed Dipper. “Let’s just go find a McDonald’s and make up our minds while we eat.”
“McDonald’s? Yes!! It’s been too long! Onwards Aoshima!!” Mabel howled as she dashed down the hall toward the elevators. Dipper chuckled fondly as he closed the door to their room, then chased after his crazy sister.

Following a sit-down serving of burgers and fries at McDonald’s, it was after 8pm. The twins settled on simply returning to the hotel for a quiet evening and getting to sleep early. Neither one of them wanted to risk being overtired and sleeping past the alarm the next morning, not with the full itinerary they had planned.
Following an entire life of routine, they knew without speaking what the process was for getting ready for bed. Dipper always went to the bathroom first, for the simple reason that he would always go to the toilet, get changed into his undershirt and sleeping shorts, and brush his teeth in the minimum time required. Mabel would then get ready at her own pace of getting into one of her long sleeping gowns and brushing her (now thankfully braces-less) teeth, a process which often included several interruptions for hairbrush-microphone vocal performances to her imagined audience.
Neither had really noticed that their siblings, over the entire summer, had both taken to visiting the bathroom for prolonged periods during the daytime at the Mystery Shack. Both had discovered masturbation in the school year since the previous summer vacation, but while at home they had the privacy of their own rooms, here in Oregon there had been much less opportunity to be alone. Their daytime bathroom sessions allowed them time to take care of themselves with no attention from anyone else. But as much as the twins confided in one another on almost everything, this was a subject that neither even considered sharing, as much out of concern for the embarrassment of their siblings as for themselves. Both thought they were the only one of the two who masturbated, and each was blithely unaware of the other’s sexuality.
Each of them, however, was keenly aware of their own present sexual issue. That issue was that neither Dipper nor Mabel had been presented any opportunity to masturbate that whole day. They had worked at the Shack into the afternoon until Grunkle Stan closed up early, and then they got on the road for Portland immediately. The twins were too distracted to think of getting themselves off at that time, in any rate.
Now, though, both were quietly uncomfortable and on edge, knowing exactly what they wanted to do and unable to figure out how to accomplish it. Both kids wondered the same questions to themselves. Could I be heard through the bathroom door? What if he/she really needs to pee and I get caught? That was too horrifying a thought to even contemplate for either of them, but they didn’t examine exactly why they felt that way.
So neither one did anything about relieving their sexual tension that evening. They watched some cable TV (a novelty), then both agreed that they should get to bed. Despite their practiced bedtime routine, Dipper and Mabel didn’t engage in their usual lights-out banter that night. Both were secretly afraid that they had weirded out the other, because of the way they perceived themselves to be acting. Still, they soon fell sound asleep, comforted by their awareness of each other’s presence in the room.
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Fistbump (a Pinecest story)